I have been working at Arrowstreet Capital full-time for more than 5 years

Pros

The flat corporate structure provides access to some world renowned industry professionals and leads to a group-focused approach.
The work/life balance is decent, especially for the financial industry.
Senior folks have been very receptive to new ideas.

Cons

Some room to improve technical systems that have been outpaced by firm growth.

I have been working at Arrowstreet Capital full-time for more than 3 years

Pros

Benefits are good 20 days PTO, 5 days SPTO

Cons

You end up taking on extra work without the pay while management takes a long time to hire someone. Even after the position gets filled there is not a good work/life balance since the additional workload will be the new norm for you.